METHODS FOR SAMPLING AND
INORGANIC ANALYSIS OF COAL
U.S. Geological Survey
Bulletin 1823
Edited by D.W. Golightly and F.O. Simon
Table 33. Organically bound sulfur in coal by indirect method
| Organic Sulfur Concentration (percent) | |||||
| Standard | Accepteda | Measuredb | nb | ||
| 771 | 0.56 | 0.55 | ± | 0.03 | (4) |
| 772 | 0.75 | 0.69 | (1) | ||
| 774 | 0.49 | 0.48 | ± | 0.03 | (3) |
| 775 | 0.45 | 0.53 | ± | 0.03 | (3) |
| 780 | 1.19 | 1.27 | ± | 0.08 | (3) |
| 782 | 1.93 | 1.76 | ± | 0.18 | (3) |
| aSource:
Accepted organic sulfur concentrations are from Alpha
Resources, Inc. (1985). bOrganic sulfur concentrations measured by difference in U.S. Geological Survey laboratories. Values shown for each coal standard are the arithmetic mean and standard deviation for n measurements, where n is the number in parentheses. |
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